CN116078925A - Processing method for processing coiled workpieces by adopting progressive stamping die - Google Patents
Processing method for processing coiled workpieces by adopting progressive stamping die Download PDFInfo
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- CN116078925A CN116078925A CN202310204213.5A CN202310204213A CN116078925A CN 116078925 A CN116078925 A CN 116078925A CN 202310204213 A CN202310204213 A CN 202310204213A CN 116078925 A CN116078925 A CN 116078925A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
Abstract
The invention discloses a processing method for processing a coiled workpiece by adopting a progressive stamping die, wherein a blanking punch is utilized to punch the upper part of a pair of material belts, and a T-shaped notch is formed on the upper side of the material belts after punching; blanking is carried out by utilizing a blanking punch II to the extending direction of a longitudinal notch section of a T-shaped notch on the material belt, so that a plurality of spaced convex-shaped monomers are formed on the material belt; stamping the convex single body by utilizing a semi-forming punch and a semi-forming female die, so that the stamped convex single body becomes a wave-shaped semi-forming piece; pushing the forming die to move to a forming position by utilizing a longitudinal cylinder, then enabling the forming punch to move downwards, and punching the wavy semi-formed part through the forming punch and the forming die to obtain a rolling workpiece; shaping the obtained coiled workpiece by using a shaping punch and a shaping female die; finally, the workpiece is cut from the material belt by using a punching punch. The invention adopts the progressive stamping die method to process the coiled workpieces, thereby greatly improving the production efficiency.
Description
Technical Field
The invention belongs to the technical field of stamping dies, and particularly relates to a processing method for processing a coiled workpiece by adopting a progressive stamping die.
Background
The traditional rolling round forming piece is manufactured by a single-punch die, the forming process comprises falling sheets, preforming and forming, and each processing process needs to be completed on different single-punch dies respectively, so that the efficiency of the whole processing process is slower. For example, for the rolling type workpiece shown in fig. 1, the whole rolling type workpiece is in an open cylindrical shape, and certain chamfering and finish shaping are required to be performed on two side edges (s position in fig. 1) of the opening.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a processing method for processing a coiled workpiece by adopting a progressive stamping die.
The invention is realized by the following technical scheme:
a processing method for processing a coiled workpiece by adopting a progressive stamping die sequentially comprises the following steps of:
step 1, blanking is carried out by utilizing the upper part of a pair of material belts of a blanking punch, wherein the blanking punch I is T-shaped, and a T-shaped notch is formed on the upper side of the material belts after blanking;
step 2, blanking by using a blanking punch II along with conveying of the material belt, wherein the blanking punch II is used for blanking the extending direction of the longitudinal notch section of the T-shaped notch on the material belt, and the extending direction of the longitudinal notch section of the T-shaped notch of the material belt is completely opened after blanking, so that a plurality of spaced convex-shaped monomers are formed on the material belt;
step 3, stamping the convex single body by utilizing a semi-forming punch and a semi-forming female die, so that the stamped convex single body becomes a wave-shaped semi-forming piece, wherein the wave-shaped semi-forming piece comprises a concave arc section positioned at the middle part, a first upper convex arc section positioned at the left side of the concave arc section and a second upper convex arc section positioned at the right side of the concave arc section;
step 5, shaping the round rolling workpiece obtained after the treatment in the step 4 by using a shaping punch and a shaping female die, shaping two side edges of the workpiece, reducing the bottom opening of the shaped workpiece compared with the step 4, and improving the product precision;
and 6, cutting the workpiece subjected to the shaping treatment in the step 5 from the material belt by using a punching punch.
In the above technical scheme, the blanking punch I comprises a transverse section and a longitudinal section vertically connected to the lower side of the center of the transverse section.
In the technical scheme, the blanking punch II is in a shape of a Chinese character '1', and is perpendicular to the blanking punch I.
In the above technical scheme, in step 2, along with the conveying of the material belt, the top position of the convex-shaped monomer on the material belt is punched by using a blanking punch III.
In the above technical scheme, in step 2, along with the conveying of the material belt, the blanking punch head four is utilized to remove the redundant materials at the bottom of the convex-shaped monomer.
In the technical scheme, the forming female die is in an upward convex semicircular shape, the longitudinal air cylinder is arranged at the rear of the forming female die and is longitudinally arranged, and the action rod of the longitudinal air cylinder is connected with the forming female die.
In the technical scheme, the front end of the action rod of the longitudinal cylinder is provided with the T-shaped block, the tail of the forming female die is provided with the T-shaped groove, and the action rod is connected with the forming female die through the cooperation of the T-shaped block and the T-shaped groove.
In the above technical scheme, the shaping drift includes 4 parts, is respectively: the middle punch is positioned in the middle, the side punches are positioned on two sides of the middle punch, and the rear side punch is positioned at the rear side of the middle punch, wherein the bottom of the middle punch is of a concave semicircle and is matched with the convex semicircle of the forming female die; the length of the rear side punch is larger than that of the middle punch and the side punch; the bottom inner angle of the side punch is an inclined chamfer, and the side punch is used for pressing and positioning the first upper convex arc section and the second upper convex arc section of the wavy semi-forming part.
In the technical scheme, the top of the middle punch is also connected with the reset spring mechanism, in the die assembly process, the forming punch presses the workpiece on the forming die to play a fixing role, and then the forming punch continuously moves downwards along with the upper die, and at the moment, the forming punch starts to participate in forming until the workpiece is completely pressed on the forming die; after the forming punch is stamped, the longitudinal cylinder is retracted, the upper die starts to move upwards, and the reset spring is expanded and reset.
In the technical scheme, the bottom of the shaping punch is provided with the semicircular groove, the shaping female die comprises a middle female die and side female dies positioned on two sides of the middle female die, wherein the middle female die is cuboid, and the top of the middle female die is an arc surface; the side female dies on the two sides are symmetrically arranged, the opposite surfaces of the side female dies are provided with arc surfaces, and the bottoms of the arc surfaces are connected with the side surfaces of the middle female die.
In the technical scheme, the insert is embedded at the joint of the side surface of the middle female die and the bottom of the arc surface of the side female die.
The invention has the following advantages and beneficial effects:
the invention adopts the progressive stamping die method to process the coiled workpieces, and can greatly improve the production efficiency.
The invention adopts a semi-forming punch and a semi-forming die to lead the stamped convex monomer to be a wave-shaped semi-forming part, and the wave-shaped semi-forming part comprises a concave arc section positioned at the middle part, a first upper convex arc section positioned at the left side of the concave arc section and a second upper convex arc section positioned at the right side of the concave arc section, and the purpose of the invention is that: in the step, two upper convex arc sections are prefabricated, and the two upper convex arc sections are used for forming circular arc side walls of symmetrical two side parts of a rolling type workpiece to be finally manufactured in the subsequent step, and the semi-forming punch and the semi-forming die can perform up-and-down die assembly and die opening movement due to the fact that the semi-forming part is wavy; in addition, the effect of the concave arc section at the middle part is also important, and the concave arc section at the middle part is connected with the convex arc sections at the two sides of the concave arc section in a stable arc transition manner, so that the plate cannot be bent at a large angle, and the deformation damage of the material is reduced.
Drawings
Fig. 1 is a schematic view of a rolling type workpiece.
FIG. 2 is an arrangement of the material strips according to the invention.
Fig. 3 is a schematic view of the processing state of step 1-step 2 of the present invention.
Fig. 4 is a schematic view of the processing state of step 3 of the present invention.
Fig. 5 is a schematic diagram showing the mating state of the half forming punch and half forming die in step 3 of the present invention.
Fig. 6 is a schematic view of the processing state of step 4 of the present invention.
Fig. 7 is a schematic view of the processing state of step 4 according to another aspect of the present invention.
Fig. 8 is a schematic top view of the process of step 4 of the present invention.
Fig. 9 is a schematic view of the processing state in step 5 of the present invention.
Fig. 10 is a schematic view of the processing state in step 6 of the present invention.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
In order to make the person skilled in the art better understand the solution of the present invention, the following describes the solution of the present invention with reference to specific embodiments.
A processing method for processing a rolling round workpiece by adopting a progressive stamping die sequentially comprises the following steps of arranging a blanking punch I, a blanking punch II, a blanking punch III, a blanking punch IV 4, a semi-forming punch 5.1, a semi-forming die 5.2, a forming die 6.3, a forming punch 6.4, a shaping punch 7.1, a shaping die assembly and a punching punch 8 on the progressive stamping die.
Step 1, blanking is carried out on the upper side of a material belt by using a blanking punch I1, wherein the blanking punch I1 is T-shaped, namely the blanking punch I1 comprises a transverse section and a longitudinal section vertically connected to the lower side of the center of the transverse section, and a T-shaped notch is formed on the upper side of the material belt after blanking.
Step 2, comprising the following steps 2.1-2.3.
Step 2.1, blanking the longitudinal notch section of the T-shaped notch on the material belt by using a blanking punch II 2 along with conveying of the material belt, wherein the blanking punch II 2 is shaped like a Chinese character '1', is perpendicular to the blanking punch I, and enables the longitudinal notch section of the T-shaped notch of the material belt to be completely opened after blanking; thus, the material belt can be formed into a plurality of convex single bodies at intervals through the first blanking punch 1 and the second blanking punch 2.
Step 2.2, punching the top position of the convex monomer on the material belt by using a blanking punch III 3 along with the material belt conveying; in this embodiment, the hole is to be machined in the round-rolled workpiece, and this step may be omitted without affecting the formation of the final round-rolled workpiece.
And 2.3, along with the conveying of the material belt, removing the redundant materials at the bottom of the convex-shaped single body by utilizing a blanking punch four 4.
Step 3, stamping the convex monomer processed in step 2 by utilizing a semi-forming punch 5.1 and a semi-forming die 5.2, so that the stamped convex monomer becomes a wave-shaped semi-forming piece, specifically, the wave-shaped semi-forming piece comprises a concave arc section a positioned at the middle part, a first upper convex arc section b positioned at the left side of the concave arc section and a second upper convex arc section c positioned at the right side of the concave arc section, and the purpose of the wave-shaped semi-forming piece is as follows: in this step, two upper convex arc sections (namely a first upper convex arc section b and a second upper convex arc section c) are prefabricated, and are used for forming circular arc side walls of symmetrical two side parts of the finally-manufactured rolling type workpiece in the subsequent step, and the semi-forming punch 5.1 and the semi-forming die 5.2 can perform up-and-down die assembly and die opening movement due to the fact that the semi-forming part is wavy; in addition, the function of the concave arc section a of the middle part is also important, and the concave arc section a of the middle part ensures that the concave arc section a is in stable arc transition connection with the convex arc sections on two sides of the concave arc section a, so that the plate cannot be bent at a large angle, and the deformation damage of the material is reduced (if the middle part is not in a concave arc shape but in a plane structure, a larger folding angle is formed between the plane structure and the upper convex arc sections on two sides of the plane structure).
And 4, pushing the forming die 6.3 to move to a forming position by using the longitudinal cylinder 6.1, then moving the forming punch 6.4 downwards, and punching the wave-shaped semi-formed part obtained after punching in the step 3 through the forming punch 6.4 and the forming die 6.3 to obtain the rolling type workpiece.
Specifically, the molding female die 6.3 is in a protruding semicircular shape, the longitudinal air cylinder 6.1 is located at the rear of the molding female die 6.3 and is longitudinally arranged, and the action rod 6.2 of the longitudinal air cylinder is connected with the molding female die 6.3. The front end of the action rod 6.2 of the longitudinal cylinder is provided with a T-shaped block 6.8, the tail of the forming female die 6.3 is provided with a T-shaped groove, and the action rod is connected with the forming female die 6.3 through the cooperation of the T-shaped block and the T-shaped groove.
The forming punch 6.4 comprises 4 parts, respectively: the middle punch 6.41 positioned in the middle, the side punches 6.42 positioned on two sides of the middle punch 6.41 and the rear side punch 6.44 positioned on the rear side of the middle punch 6.41, wherein the bottom of the middle punch 6.41 is of a concave semicircle and is matched with the convex semicircle of the forming die 6.3; the length of the rear punch 6.44 is larger than that of the middle punch and the side punch, so that when the rear punch 6.44 punches, firstly, the rear side of the wavy semi-formed part to be punched is reached, and the limiting effect is achieved; the bottom inner angle m of the side punch 6.42 is an inclined chamfer, and the side punch 6.42 is used for pressing and positioning the first upper convex arc section b and the second upper convex arc section c of the wavy semi-formed part; further, the top of the middle punch 6.41 is also connected with a return spring mechanism 6.45, during the die assembly process, the forming punch presses the workpiece on the forming die 6.3 to play a role of fixing, and then the forming punch continuously moves downwards along with the upper die, and at the moment, the forming punch starts to participate in forming until the workpiece is completely pressed on the forming die 6.3; after the forming punch is stamped, the longitudinal cylinder 6.1 is retracted, the upper die starts to move upwards, and the reset spring is expanded and reset.
And 5, shaping the round rolling type workpiece obtained after the treatment of the step 4 by using a shaping punch 7.1 and a shaping female die, shaping two side edges (s position of fig. 1) of the workpiece, reducing the bottom opening of the shaped workpiece by 0.2mm compared with the step 4, and improving the product precision.
Specifically, a semicircular groove is formed in the bottom of the shaping punch 7.1, the shaping female die comprises a middle female die 7.2 and side female dies 7.3 positioned on two sides of the middle female die 7.2, wherein the middle female die 7.2 is cuboid, and the top of the middle female die is an arc surface; the two side female dies 7.3 are symmetrically arranged, the opposite surfaces of the two side female dies are provided with arc surfaces, and the bottoms of the arc surfaces are connected with the side surfaces of the middle female die 7.2. Further, since the insert n is fitted to the side surface of the intermediate die 7.2 at the junction with the bottom of the circular arc surface of the side die 7.3, the insert is shaped (in contact with both side edges of the work piece), and therefore, abrasion is liable to occur, and periodic replacement is required.
And 6, cutting the workpiece subjected to the shaping treatment in the step 5 from a material belt by using a punching punch 8, and enabling the workpiece to fall into a slide through a blanking hole to finish discharging.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.
Claims (10)
1. A processing method for processing a rolling type workpiece by adopting a progressive stamping die is characterized by comprising the following steps of: the progressive stamping die is sequentially provided with a blanking punch I, a blanking punch II, a semi-forming punch and semi-forming die assembly, a forming die and forming punch assembly, a shaping punch and shaping die assembly and a punching punch, and the processing method comprises the following steps:
step 1, blanking is carried out by utilizing the upper part of a pair of material belts of a blanking punch, wherein the blanking punch I is T-shaped, and a T-shaped notch is formed on the upper side of the material belts after blanking;
step 2, blanking by using a blanking punch II along with conveying of the material belt, wherein the blanking punch II is used for blanking the extending direction of the longitudinal notch section of the T-shaped notch on the material belt, and the extending direction of the longitudinal notch section of the T-shaped notch of the material belt is completely opened after blanking, so that a plurality of spaced convex-shaped monomers are formed on the material belt;
step 3, stamping the convex single body by utilizing a semi-forming punch and a semi-forming female die, so that the stamped convex single body becomes a wave-shaped semi-forming piece, wherein the wave-shaped semi-forming piece comprises a concave arc section positioned at the middle part, a first upper convex arc section positioned at the left side of the concave arc section and a second upper convex arc section positioned at the right side of the concave arc section;
step 4, pushing the forming die to move to a forming position by using a longitudinal cylinder, then enabling the forming punch to move downwards, and stamping the wave-shaped semi-formed part through the forming punch and the forming die to obtain a rolling workpiece;
step 5, shaping the round rolling workpiece obtained after the treatment in the step 4 by using a shaping punch and a shaping female die, shaping two side edges of the workpiece, reducing the bottom opening of the shaped workpiece compared with the step 4, and improving the product precision;
and 6, cutting the workpiece subjected to the shaping treatment in the step 5 from the material belt by using a punching punch.
2. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 1, characterized by: the blanking punch I comprises a transverse section and a longitudinal section vertically connected to the lower side of the center of the transverse section.
3. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 1, characterized by: the blanking punch II is in a shape of a Chinese character '1', and is perpendicular to the blanking punch I.
4. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 1, characterized by: in the step 2, as the material belt is conveyed, punching is carried out on the top position of the convex-shaped single body on the material belt by utilizing a blanking punch III.
5. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 4, characterized in that: in the step 2, along with the conveying of the material belt, the blanking punch head IV is utilized to remove the redundant materials at the bottom of the convex-shaped single body.
6. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 1, characterized by: the forming female die is in an upward convex semicircular shape, the longitudinal air cylinder is positioned at the rear of the forming female die and is longitudinally arranged, and the action rod of the longitudinal air cylinder is connected with the forming female die.
7. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 6, characterized in that: the front end of the action rod of the longitudinal cylinder is provided with a T-shaped block, the tail of the forming female die is provided with a T-shaped groove, and the action rod is connected with the forming female die through the cooperation of the T-shaped block and the T-shaped groove.
8. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 1, characterized by: the forming punch comprises 4 parts, namely: the middle punch is positioned in the middle, the side punches are positioned on two sides of the middle punch, and the rear side punch is positioned at the rear side of the middle punch, wherein the bottom of the middle punch is of a concave semicircle and is matched with the convex semicircle of the forming female die; the length of the rear side punch is larger than that of the middle punch and the side punch; the bottom inner angle of the side punch is an inclined chamfer, and the side punch is used for pressing and positioning the first upper convex arc section and the second upper convex arc section of the wavy semi-forming part.
9. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 8, characterized in that: the top of the middle punch is also connected with a reset spring mechanism, in the die assembly process, the forming punch presses the workpiece on the forming female die to play a fixing role, and then the forming punch starts to participate in forming along with the continuous downward movement of the upper die until the workpiece is completely pressed on the forming female die; after the forming punch is stamped, the longitudinal cylinder is retracted, the upper die starts to move upwards, and the reset spring is expanded and reset.
10. The processing method for processing a rolling type workpiece using a progressive stamping die according to claim 1, characterized by: the bottom of the shaping punch is provided with a semicircular groove, the shaping female die comprises a middle female die and side female dies positioned at two sides of the middle female die, wherein the middle female die is cuboid, and the top of the middle female die is an arc surface; the side female dies on the two sides are symmetrically arranged, the opposite surfaces of the side female dies are provided with arc surfaces, and the bottoms of the arc surfaces are connected with the side surfaces of the middle female die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310204213.5A CN116078925A (en) | 2023-03-06 | 2023-03-06 | Processing method for processing coiled workpieces by adopting progressive stamping die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310204213.5A CN116078925A (en) | 2023-03-06 | 2023-03-06 | Processing method for processing coiled workpieces by adopting progressive stamping die |
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| CN116078925A true CN116078925A (en) | 2023-05-09 |
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| CN202310204213.5A Pending CN116078925A (en) | 2023-03-06 | 2023-03-06 | Processing method for processing coiled workpieces by adopting progressive stamping die |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1441746A (en) * | 1972-10-10 | 1976-07-07 | Ward Bros Sherburn Ltd | Cold forming |
| CN206500469U (en) * | 2017-02-23 | 2017-09-19 | 西安竹乐网络科技有限公司 | A kind of ring bending mould |
| CN108097752A (en) * | 2016-11-25 | 2018-06-01 | 宝应县广达钢圈制造有限公司 | A kind of adjustable steel ring edge rolling device |
| CN211757970U (en) * | 2020-01-14 | 2020-10-27 | 厦门泰其新能源科技有限公司 | Rolling circle upgrades forming die |
| CN113560426A (en) * | 2021-09-26 | 2021-10-29 | 苏州铭峰精密机械有限公司 | Forming method of automobile chassis buffer part |
| CN115365380A (en) * | 2022-08-15 | 2022-11-22 | 吉林省浩宁激光焊管科技开发有限公司 | U-shaped or O-shaped forming process applied to cylinder welding and forming equipment thereof |
-
2023
- 2023-03-06 CN CN202310204213.5A patent/CN116078925A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1441746A (en) * | 1972-10-10 | 1976-07-07 | Ward Bros Sherburn Ltd | Cold forming |
| CN108097752A (en) * | 2016-11-25 | 2018-06-01 | 宝应县广达钢圈制造有限公司 | A kind of adjustable steel ring edge rolling device |
| CN206500469U (en) * | 2017-02-23 | 2017-09-19 | 西安竹乐网络科技有限公司 | A kind of ring bending mould |
| CN211757970U (en) * | 2020-01-14 | 2020-10-27 | 厦门泰其新能源科技有限公司 | Rolling circle upgrades forming die |
| CN113560426A (en) * | 2021-09-26 | 2021-10-29 | 苏州铭峰精密机械有限公司 | Forming method of automobile chassis buffer part |
| CN115365380A (en) * | 2022-08-15 | 2022-11-22 | 吉林省浩宁激光焊管科技开发有限公司 | U-shaped or O-shaped forming process applied to cylinder welding and forming equipment thereof |
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